"They can continue watching until the eclipse becomes total at 7.40am, and hopefully for a little while after this time, if they have an unobstructed western horizon."
他们可以继续观测直到7：40月亮完全被吞蚀，然后如果那时在西边还能看到月亮的话，那么他们还能再看一小会儿。
With SDO watching the sun in a wavelength of extreme ultraviolet light, the dark moon created a partial eclipse of the sun.
据太阳动力学观测台当时的监测显示，在太阳强烈的紫外线的波长影响下，漆黑的月亮遮挡了部分强光，从而出现了日偏食。
'they can continue watching until the eclipse becomes total at 7.40am, and hopefully for a little while after this time, if they have an unobstructed western horizon.'
他们可以继续观测直到7：40月亮完全被吞蚀，然后如果那时在西边还能看到月亮的话，那么他们还能再看一小会儿。
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